Credit: Christopher Evans

JOINING THE ENEMY: Kevin Youkilis agreed to a one-year, $12 million contract with the New York Yankees yesterday.

The sky is green, the Earth is flat, and Kevin Youkilis is a Yankee.

Once the epitome of the grind-it-out Red Sox and a two-time World Series champion in Boston, Youkilis yesterday agreed to a one-year, $12â€‰million deal with the team’s fiercest rival, according to Fox Sports.

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